Manual Marshall Paul Weller (page 2 of 2) (English)

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Introduction

The Marshall reputation has been built upon many things,but our longevity

comes mainly as a result of the continual relevance of the concepts behind the

design and build of our amplifiers. Added to this are solid workmanship,reliability,

stylish looks,and above all – great tone.

One of the most versatile Marshalls ever made,the Lead and Bass 50 watt combo,was offered for

sale through Mail Order from 1973 through 1976. Its original model number was the 2100 and was a

revolution in its day,combining one channel from a bass amp and one from a lead amp. Produced in fairly

low numbers,these combos are now much sought after for their simplicity of operation and superb natural

valve tone. The continual fascination and love that many guitarists show for our vintage amplification is a

testament to just how relevant and important these models still are today.

Achieving the beautifully organic and vibrant overdrive which is their trademark,can only be done in one way – crank’em

up! The result is pure majestic tone,uncluttered by unnecessary circuitry. With solos this produces a big,round,warm

sustain,full of classic character. With chord work you get a bark and percussive attack with a natural sounding break up,

which allows each note to ring out in a glorious musical crunch.

Like all Marshalls re-issues the 1987X-PW Lead and Bass Fifty Combo is as faithful as possible to the originals in terms of

construction and tone. Hand-crafted in the UK these superb units feature finger-jointed cabinets of birch plywood,hand-welded

chassis’s,hand-wired transformers,potentiometers and valve bases and the highest quality PCBs and components.

1. POWER SWITCH

This is the On/Off switch for mains power to the

amplifier.

Note: Please ensure the amplifier is switched off and

unplugged from the mains electricity supply whenever it

is moved.

2. STANDBY SWITCH

The Standby Switch is used in conjunction with the

Power Switch (item 1) to‘warm up’ the amplifier before

use and to prolong the life of the output valves.

When powering up the amplifier always engage the

Power Switch first,leaving the Standby switch on

‘Standby’. This allows the application of the voltage

required to heat the valves to their correct operating

temperature. After approximately two minutes the

valves will have reached the correct operating

temperature and the Standby Switch can be engaged.

In order to prolong valve life,the Standby Switch alone

should also be used to turn the amplifier on and off

during breaks in a performance. Also,when switching

off,always disengage the Standby Switch prior to the

main Power Switch.

3. INICATOR

The Indicator will light up when your amplifier is

receiving the correct mains power and is switched on.It

will not be lit when the amplifier is switched off and/or

is not receiving mains power.

4. PRESENCE CONTROL

This control operates in the 1987X-PW’s power section

and adds high frequencies to your sound by altering the

power amplifier’s negative feedback. Turning this control

clockwise adds more edge and‘sparkle’ to your sound,

making it crisper and more cutting.

5. BASS CONTROL

This adjusts the bottom end,turning it clockwise

increases the amount of low frequencies in the sound.

6. MIDDLE CONTROL

This adjusts the level of those all-important mid-range

frequencies. Turning it clockwise increases the mids and

fattens your sound,giving it more punch. Turning it

anticlockwise reduces the mids.

7. TREBLE CONTROL

This adjusts the top-end. Turning it clockwise increases

the amount of high frequencies (treble) present in the

sound,making your tone brighter.

Note: The following four controls - PRESENCE (item

4),BASS (item 5),MIDDLE (item 6) &TREBLE (item 7) -

are all shared,meaning that they all work on both

Channel I and Channel II. TheTreble,Middle and Bass

controls are highly interactive and altering one control

can change the way the other two behave.For this

reason,experimentation is recommended.

Paul’s Preferred settings,as shown on the panel above:

P = 6,B = 10,M = 10,T = 4,VI = 2,VII = 0

8. VOLUME I

This controls the overall output level of Channel I,

turning it clockwise increases the volume. This is the

1987 super-lead channel and is voiced for a higher treble

response than Channel II.

9. VOLUME II

This controls the overall output level of Channel II,

turning it clockwise increases the volume level. This is

the 1986 super-bass channel and is voiced for a 'bass',

flatter response.

10. HIGH SENSITIVITY INPUT FOR

CHANNEL I

This is the‘high sensitivity’ guitar input for Channel I –

the“Lead” channel is the brighter of the two channels -

and is the most commonly used input. Always use a high

quality screened guitar lead.

11. LOW SENSITIVITY INPUT FOR

CHANNEL I

This is the‘low sensitivity’ guitar input for Channel I.It is

6dB lower in volume than the‘high sensitivity’ input and

has a darker sound as well due to its significantly lower

input impedance.

12. HIGH SENSITIVITY INPUT FOR

CHANNEL II

This is the‘high sensitivity’ guitar input for Channel II,

the so-called‘Bass’ channel.

13. LOW SENSITIVITY INPUT FOR

CHANNEL II

This is the‘low sensitivity’ guitar input for Channel II.It

is 6dB lower in volume than the‘high sensitivity’ input

and has a darker sound as well due to its significantly

lower input impedance.

Performance Note: Bridging or ‘jumping’

the two channels

Because both Channels of the 1987X-PW have the

same number of gain stages (two) and are therefore in

phase with each other,it is possible to bridge them

together (‘slaving’,‘jumping’,‘linking’ or even‘daisy-

chaining’) and use them both at the same time.Doing

this enables you to expand upon the amp’s tonal

possibilities by mixing the two channels together.

The most common way of doing this is to plug your

guitar into the top (high sensitivity) input of Channel I

and then run a short‘jumper’ guitar cable (i.e.a

screened cable) from the Channel I’s bottom (low

sensitivity) input to the top (high sensitivity) input of

Channel II.(fig.1)

The‘reverse’ is also possible – namely plugging your

guitar into Channel II’s top input and then running the

‘jumper’ cable from Channel II’s bottom input to

Channel I’s top input. This less common approach can

yield some interesting tonal variations.(fig.2)

From Jim Marshall

I would personally like to congratulate you for

choosing this incredibly special amplifier from

Marshall - the Lead and Bass 1987X-PW.

As you have heard the 2100 was initially launched in

1973 and has been the work-horse of many a guitarist

seeking the best of both lead and bass worlds. The

warm yet attacking tone created from these amps

proved extremely popular with the emerging generation

of guitarists and,I’m pleased to say,means that the Lead

and Bass 50 is still held in high regard today. One

guitarist who favours the 2100 just happens to be one

of the most respected and influential singer/songwriters

of recent times - PaulWeller.

I feel very fortunate to have enjoyed many years of

friendship and associations with some of the

most talented guitarists in living memory. The

fact that an artist of Paul’s calibre chooses a

Marshall is a very humbling feeling indeed. So

to celebrate both our long standing musical

partnership and Paul’s 50th birthday,I asked

the Marshall team to create a special Limited Edition amplifier based on the

2100 Lead and Bass 50 Combos. In response they have produced an amp

brimming full of vintage tone and style,indicative of the‘Mod Father’ himself.

Apart from our love of music,both Paul and myself are committed to

raising money for very worthy causes. In purchasing this amplifier you

have ensured a substantial donation will be made by Marshall to the

Childline charity. Offering help and advice to children who need it

most,Childline is a vital service to the young and one which we are

proud to support.

All 50 of the 1987X-PW amplifiers have been hand-built in the UK

by our highly skilled staff on the Marshall factory floor. Their

attention to detail,craftsmanship and exacting standards have

been the foundation on which Marshall’s reputation has been

built,so you can rest assured that your 1987X-PW will stand the

test of time.

I sincerely hope that your new amplifier brings you years of

guitar playing pleasure and enjoyment. Welcome to the family.

Yours Sincerely

Dr Jim Marshall OBE

Fig.1 Fig.2

1 2 3 4 5 6 7 8 9 11

10 12

The Lead Bass Fifty has been

my main amp for the last ten

years or so, nothing comes

close to it, till now

“

”

photo

LawrenceWatson

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Marshall Paul Weller Manual

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